Shaanxi Rongbao Machinery Electronics Co., LTD. specializes in Copper Sand Casting manufacturing, delivering precision-engineered components since 2003. Our gravity casting process produces H60 copper hexagon nuts for kitchen applications, with individual part weights of 0.3 kg. With 14 utility model patents and recognition as a National High-Tech Enterprise, we combine advanced manufacturing capabilities with rigorous quality control. Our facility maintains production capacity of 5,000 pieces for specialized copper components, supported by CNC machining and shot blasting surface treatment. We export 70% of our products to international markets across the United States, Europe, and Japan.

You need a manufacturing partner that understands the specific qualities of copper. Our gravity casting process provides improved material flow and mechanical robustness of your copper components.
From mould design to completed products, we provide total solutions. Your components are precision CNC machined and professionally shot blasted to ensure dimensional accuracy and excellent surface quality.
Our integrated manufacturing method simplifies your supplier management. You deal with only one trusted partner instead of having to juggle many vendors for casting, machining and finishing operations.

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Parameter
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Details
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Material
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H60 Copper Alloy
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Casting Process
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Gravity Sand Casting
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Part Weight
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0.3 kg
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Machining
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CNC Precision Processing
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Surface Treatment
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Shot Blasting
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Production Capacity
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5,000 pieces
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Customization
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OEM/ODM Available
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MOQ
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Approximately 100 pieces
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Lead Time
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20-30 working days
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Packaging
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Wooden Box
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Certifications
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ISO 9001:2015, ISO 14001, ISO 45001
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Origin
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Xi'an, China
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Our Copper Sand Casting process begins with precise mold preparation. We create sand molds using proven patterns that ensure dimensional consistency across your production runs.
The gravity casting technique allows molten H60 copper to fill mold cavities naturally. This method produces parts with excellent mechanical properties and minimal porosity.
After casting, your components receive CNC machining for tight tolerances. Our precision equipment handles complex geometries while maintaining the structural integrity copper alloys provide.
Shot blasting treatment follows machining. This surface preparation removes casting residue and creates uniform texture, preparing your parts for assembly or additional finishing.
You benefit from our full certification framework. ISO 9001:2015 accreditation provides consistent quality control throughout the manufacturing process.
We are dedicated to sustainable manufacturing processes as evidenced by our ISO 14001 environmental management system. We sustainably manage copper materials with little environmental impact.
ISO 45001 accreditation ensures safe work environments and protects our people. We produce your purchases at production sites that fulfil international occupational safety and health requirements.
We have successfully passed SSBM audits by world-class technology leaders like ABB. This verification confirms our ability to meet strict international supply requirements.

We offer OEM and ODM services based on your individual demands. Using your technical drawings, 3D models or application requirements we design the best solutions.
Your design will be reviewed by our engineering staff for manufacturability. We advocate a balance between performance requirements and production efficiency.
Prototype development offered pre full manufacturing. You can check out fit, function and finish before ordering in greater quantities.
The usual MOQ is about 100 pieces, although this is flexible for experimental projects and also for ongoing supply contracts.
We maintain scheduled productions that will fit inside your time lines. Normal orders take about 20-30 working days from confirmation to delivery.
New designs are mould manufactured in 15-25 days. Sand casting patterns are made by tooling specialists . These patterns are tough and provide reproducibility during manufacturing runs .
Batch manufacture of approved designs: 7-20 days What makes it efficient, is our well established processes and competent production teams.
Copper castings are packed in wooden boxes for overseas shipping. Our logistics know-how means your components arrive ready to use.
The kitchen equipment makers use our copper components for their durability and thermal qualities. H60 copper alloy exhibits good corrosion resistance in severe conditions.
Hex nuts should be accurately threaded and dimensionally correct. We use gravity casting and CNC machining to produce parts that meet assembly standards.
uniform final properties are obtained by shot blasting surface treatment Your components are ready to be assembled into larger assemblies without any more preparation.

Q: What makes the product suitable for kitchen applications?
A: The product produces components with excellent thermal conductivity and corrosion resistance. The H60 copper alloy we use maintains structural integrity while offering natural antimicrobial properties valued in kitchen environments.
Q: Can you modify specifications for different applications?
A: Yes, our OEM/ODM services accommodate specification changes. We adjust casting parameters, machining tolerances, and surface treatments based on your application requirements while maintaining production efficiency.
Q: How do you ensure dimensional accuracy in sand casting?
A: We combine precision pattern making with CNC machining. The gravity casting process provides consistent material density, while subsequent machining operations achieve tight tolerances specified in your technical drawings.
Q: What quality documentation accompanies shipments?
A: Each order includes inspection reports, material certifications, and dimensional verification data. Our ISO 9001:2015 certified quality system ensures complete traceability for your copper components.
Q: Do you support international shipping requirements?
A: Absolutely. With 70% export volume to United States, Europe, and Japan, we understand international logistics. We provide appropriate documentation and packaging that meets your regional import requirements.
Ready to discuss your copper component requirements with Copper Sand Casting? Email steve.zhou@263.net to start your project conversation today.
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